The peroxisome proliferator-activated receptor gamma agonist rosiglitazone inhibits growth and downregulates Bcl-2 gene expression in human follicular thyroid cancer cells

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T. S. Wong ◽  
M. G. Wong ◽  
E. Kebebew ◽  
Q. Y. Duh ◽  
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Michelle Croyle ◽  
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Donata Vitagliano ◽  
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Endocrine ◽  
2006 ◽  
Vol 30 (1) ◽  
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...  

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E. Perri ◽  
...  

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Vol 19 (12) ◽  
pp. 4001 ◽  
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Marcus Krüger ◽  
Johann Bauer ◽  
Markus Wehland ◽  
Thomas Corydon ◽  
...  

Thyroid cancer is the most abundant tumor of the endocrine organs. Poorly differentiated thyroid cancer is still difficult to treat. Human cells exposed to long-term real (r-) and simulated (s-) microgravity (µg) revealed morphological alterations and changes in the expression profile of genes involved in several biological processes. The objective of this study was to examine the effects of short-term µg on poorly differentiated follicular thyroid cancer cells (FTC-133 cell line) resulting from 6 min of exposure to µg on a sounding rocket flight. As sounding rocket flights consist of several flight phases with different acceleration forces, rigorous control experiments are mandatory. Hypergravity (hyper-g) experiments were performed at 18g on a centrifuge in simulation of the rocket launch and s-µg was simulated by a random positioning machine (RPM). qPCR analyses of selected genes revealed no remarkable expression changes in controls as well as in hyper-g samples taken at the end of the first minute of launch. Using a centrifuge initiating 18g for 1 min, however, presented moderate gene expression changes, which were significant for COL1A1, VCL, CFL1, PTK2, IL6, CXCL8 and MMP14. We also identified a network of mutual interactions of the investigated genes and proteins by employing in-silico analyses. Lastly, µg-samples indicated that microgravity is a stronger regulator of gene expression than hyper-g.


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